CVE-2021-43569
- Source
- https://cve.org/CVERecord?id=CVE-2021-43569
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43569.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43569
- Aliases
- Published
- 2021-11-09T22:15:07.597Z
- Modified
- 2026-07-09T05:45:33.583544Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
The verify function in the Stark Bank .NET ECDSA library (ecdsa-dotnet) 1.3.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
- References
Affected packages
Git / github.com/starkbank/ecdsa-dotnet
Affected ranges
- Type
- GIT
- Repo
- https://github.com/starkbank/ecdsa-dotnet
- Events
-
IntroducedLast affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "1.3.2" }, { "last_affected": "1.3.2" } ], "source": [ "CPE_STRING", "REFERENCES" ], "cpe": "cpe:2.3:a:starkbank:ecdsa-dotnet:1.3.2:*:*:*:*:*:*:*" }